Fix filtering operations across droplets, snapshots, and other resources

[Aditya948351]

Multiple filtering operations are not working properly across different resource types (e.g., filtering droplets by status, filtering snapshots by prefix name). Standardize the filtering mechanism and ensure all filter parameters work as advertised. This affects issues #499 and #441.

[Aditya948351]

hey @digitalocean-engineering please assign this Issue to me so i can work on this issue